The Keccak XKCP SHA-3 reference implementation before fdc6fef has an integer overflow and resultant buffer overflow that allows attackers to execute arbitrary code or eliminate expected cryptographic properties. This occurs in the sponge function interface.
CVE-2022-37454
“—” beside the score: it is equal to NVD's CVSS score.
This critical-severity CVE scores 9.8 under NVD CVSS v3. EPSS exploit probability: 7.4% (94th percentile of EPSS-scored CVEs). No GitHub Security Advisory CVSS is on record for this CVE.
- CISA's Vulnrichment rates exploitation as PoC; EchelonGraph holds no exploit-code reference for it
A fix is available — apply it.
- CVSS v3
- 9.8
- EG Score
- 9.8CRITICALmedium confidence
- EG Risk
- 75EG Risk 75/100
EG Risk is EchelonGraph's 0–100 priority score. It fuses impact severity (EG Severity, the CVSS base score, never the KEV-floored or EPSS-lifted EG Score) with real-world exploitation and automatability, under weights EchelonGraph set by hand, so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner.
How it’s computed (value × EchelonGraph’s weight)Severity98% × 45%Impact severity (EG Severity): CVSS 9.8 of 10. Never the KEV-floored or EPSS-lifted EG Score.Exploitation40% × 40%EchelonGraph's fixed weight for EG-KEV Tier 3 (Elevated): a constant, not a probability.Automatability100% × 15%CISA's SSVC Automatable value: yes (Vulnrichment).SSVC (CISA's decision table, applied by EchelonGraph): Track at low, Track* at medium and Attend at high mission impact.Exploitation public PoC (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.Action: A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high. - EPSS PROB
- 7.4%
- EPSS %ILE
- 94th
- KEV
- Not listed
What the EG score is made of (scorer v4.0: the three questions the 0–10 score mixes, published apart · methodology)
The EG score (9.8): severity, escalated by confirmed exploitation. This CVE's 9.8 is its impact severity (EG Severity), not escalated.
- EG Severity
- 9.8 CRITICALCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.NVD CVSS v3 · CVSS v3.0 or v3.1
- EG Likelihood
- 7.4% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-10-20). FIRST's exploitation probability, not an EchelonGraph model.
- Confirmed exploitation
- None on record (CISA KEV, EG-KEV Tier 1)Reported apart from the likelihood: an observed fact, not a probability.
- EG Priority
- SSVC Track* at medium mission impactTrack at low, Track* at medium and Attend at high mission impact.CISA BOD 26-04: 3 days if the affected system is publicly exposed; 60 days if it is not.Each input and its source: the SSVC and BOD 26-04 blocks below.
SSVC (CISA's decision table, applied by EchelonGraph)Track at low, Track* at medium and Attend at high mission impact.
A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.
Exploitation public PoC (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table
BOD 26-04 (CISA's remediation timeline, Table 1)3 days if the affected system is publicly exposed; 60 days if it is not.
In CISA KEV no (CISA's KEV catalog) · Automatable yes (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it
Published
October 21, 2022
Last Modified
October 14, 2026
Advisory Details (10)
Auto-updated Oct 15, 2026A Vulnerability in Implementations of SHA-3, Shake, EdDSA | Hacker News
https://news.ycombinator.com/item?id=35050307[SECURITY] Fedora 35 Update: php-8.0.25-1.fc35 - package-announce - Fedora mailing-lists
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CMIEXLMTW5GO36HTFFWIPB3OHZXCT3G4/[SECURITY] Fedora 36 Update: php-8.1.12-1.fc36 - package-announce - Fedora mailing-lists
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3ALQ6BDDPX5HU5YBQOBMDVAA2TSGDKIJ/[SECURITY] [DLA 3175-1] python3.7 security update
https://lists.debian.org/debian-lts-announce/2022/11/msg00000.html[SECURITY] [DLA 3174-1] pysha3 security update
https://lists.debian.org/debian-lts-announce/2022/10/msg00041.htmlBuffer overflow in sponge queue functions · Advisory · XKCP/XKCP · GitHub
https://github.com/XKCP/XKCP/security/advisories/GHSA-6w4m-2xhg-2658A Vulnerability in Implementations of SHA-3, SHAKE, EdDSA, and Other NIST-Approved Algorithms
https://eprint.iacr.org/2023/331Vendor Advisories for CVE-2022-37454(5)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
- RHSA-2023:2903Red Hat Product SecurityMedium
Red Hat Security Advisory: php:7.4 security update
- RHSA-2023:2417Red Hat Product SecurityMedium
Red Hat Security Advisory: php:8.1 security update
- RHSA-2023:0965Red Hat Product SecurityMedium
Red Hat Security Advisory: php security update
- RHSA-2023:0848Red Hat Product SecurityMedium
Red Hat Security Advisory: php:8.0 security update
- CVE-2022-37454Microsoft Security Response Center (MSRC)
CVE-2022-37454
Patch Availability(12)
| Vendor / Ecosystem | Fix (by version range) / Patch | Released | Source |
|---|---|---|---|
| ubuntu | python3.8 (3.8.0-3ubuntu1~18.04.2+esm1) @ bionic | 2026-10-21 | ubuntu |
| ubuntu | python3.10-full (3.10.7-1ubuntu0.2) @ kinetic | 2026-10-21 | ubuntu |
| ubuntu | php8.1-snmp (8.1.7-1ubuntu3.1) @ kinetic | 2026-10-21 | ubuntu |
| ubuntu | libpython3.6-minimal (3.6.9-1~18.04ubuntu1.10) @ bionic | 2026-10-21 | ubuntu |
| ubuntu | pypy3-venv (7.3.9+dfsg-1ubuntu0.1) @ jammy | 2026-10-21 | ubuntu |
| ubuntu | python3-sha3 (1.0.2-4.2ubuntu0.22.04.1) @ jammy | 2026-10-21 | ubuntu |
| ubuntu | python3.9 (3.9.5-3ubuntu0~20.04.1+esm1) @ focal | 2026-10-21 | ubuntu |
| ubuntu | libpython3.7 (3.7.5-2ubuntu1~18.04.2+esm2) @ bionic | 2026-10-21 | ubuntu |
| redhat | php:7.4-8080020230118140634.cc342424 | 2023-05-16 | redhat |
| redhat | php:8.1-9020020230120141750.9 | 2023-05-09 | redhat |
| redhat | php-0:8.0.27-1.el9_1 | 2023-02-28 | redhat |
| redhat | php:8.0-8070020230118114629.ef331662 | 2023-02-21 | redhat |
Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.
Affected Packages
(14 across 9 ecosystems)
Debian:11(4)
| Package | Vulnerable range | Fix by version range | Dependents |
|---|---|---|---|
| php7.4 | 7.4.21-1+deb11u1, 7.4.25-1+deb11u1, 7.4.26-1, 7.4.28-1+deb11u1, 7.4.30-1+deb11u1 |
| — |
| pypy3 | 7.3.5+dfsg-2, 7.3.5+dfsg-2+deb11u1 |
| — |
| pysha3 | 1.0.2-4.1 |
| — |
| python3.9 | 3.9.2-1, 3.9.2-1+deb11u1, 3.9.2-1+deb11u2, 3.9.2-1+deb11u3 |
| — |
Debian:10(3)
| Package | Vulnerable range | Fix by version range | Dependents |
|---|---|---|---|
| php7.3 | 7.3.10-1 ... 7.3.9-1~deb10u1 (16 versions) |
| — |
| pysha3 | 1.0.2-2 |
| — |
| python3.7 | 3.7.3-2, 3.7.3-2+deb10u1, 3.7.3-2+deb10u2, 3.7.3-2+deb10u3 |
| — |
Alpine:v3.16(1)
| Package | Vulnerable range | Fix by version range | Dependents |
|---|---|---|---|
| python3 | — |
| — |
Alpine:v3.17(1)
| Package | Vulnerable range | Fix by version range | Dependents |
|---|---|---|---|
| python3 | — |
| — |
Debian:12(1)
| Package | Vulnerable range | Fix by version range | Dependents |
|---|---|---|---|
| pypy3 | — |
| — |
Debian:13(1)
| Package | Vulnerable range | Fix by version range | Dependents |
|---|---|---|---|
| pypy3 | — |
| — |
Debian:14(1)
| Package | Vulnerable range | Fix by version range | Dependents |
|---|---|---|---|
| pypy3 | — |
| — |
PyPI(1)
| Package | Vulnerable range | Fix by version range | Dependents |
|---|---|---|---|
| pysha3 | 0.1 ... 1.0b1 (10 versions) |
| — |
RubyGems(1)
| Package | Vulnerable range | Fix by version range | Dependents |
|---|---|---|---|
| sha3 | 0.1.0 ... 1.0.4 (11 versions) |
| — |
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Additional Vendor Advisories
(8)
Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.
- UbuntuUSN-5717-1MEDIUM
PHP vulnerabilities
- UbuntuUSN-5767-1MEDIUM
Python vulnerabilities
- UbuntuUSN-5767-3MEDIUM
Python vulnerability
- UbuntuUSN-5888-1MEDIUM
Python vulnerabilities
- UbuntuUSN-5930-1MEDIUM
Python vulnerability
- UbuntuUSN-5931-1MEDIUM
Python vulnerability
- UbuntuUSN-6524-1MEDIUM
PyPy vulnerability
- UbuntuUSN-6525-1MEDIUM
pysha3 vulnerability
Data Freshness Timeline
(refreshed 21× in last 7d / 50× in last 30d)
Each row is a time one of our pipelines fetched, updated or re-scored this CVE. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.
Showing the most recent 96 of 214 refreshes on record for this CVE.
A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. 4 repeat rows among the latest 100 are merged into the row they repeat. The 118 oldest rows on record are not shown and were not checked, so the counts can still include repeats.
- 2026-10-21 16:29 UTCEPSS rescoreEPSS 7.4% · 94th percentile
- 2026-10-21 14:59 UTCEG score recompute
- 2026-10-21 14:59 UTCVendor advisory
- 2026-10-20 16:29 UTCEPSS rescoreEPSS 7.4% · 94th percentile
- 2026-10-20 16:26 UTCVendor advisory
- 2026-10-19 17:55 UTCEG score recompute
- 2026-10-19 17:55 UTCVendor advisory
- 2026-10-19 16:28 UTCEPSS rescoreEPSS 7.4% · 94th percentile
- 2026-10-18 20:08 UTCEG score recompute
- 2026-10-18 20:08 UTCVendor advisory
- 2026-10-18 16:28 UTCEPSS rescoreEPSS 7.4% · 94th percentile
- 2026-10-18 08:30 UTCEG score recompute
- 2026-10-17 22:22 UTCEG score recompute
- 2026-10-17 22:22 UTCVendor advisory
- 2026-10-17 16:29 UTCEPSS rescoreEPSS 5.8% · 92nd percentile
- 2026-10-17 00:36 UTCEG score recompute
- 2026-10-17 00:36 UTCVendor advisory
- 2026-10-16 16:35 UTCEPSS rescoreEPSS 5.8% · 92nd percentile
- 2026-10-16 00:19 UTCEG score recompute
- 2026-10-16 00:19 UTCVendor advisory
- 2026-10-15 16:28 UTCEPSS rescoreEPSS 5.8% · 92nd percentile
- 2026-10-14 18:25 UTCVendor advisory
- 2026-10-14 17:35 UTCEG score recompute
- 2026-10-14 17:35 UTCVendor advisory
- 2026-10-14 16:29 UTCEPSS rescoreEPSS 5.8% · 92nd percentile
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- 2026-10-13 16:29 UTCEPSS rescoreEPSS 5.8% · 92nd percentile
- 2026-10-13 16:07 UTCVendor advisory
- 2026-10-12 18:15 UTCEG score recompute
- 2026-10-12 18:15 UTCVendor advisory
- 2026-10-12 16:30 UTCEPSS rescoreEPSS 5.8% · 92nd percentile
- 2026-10-11 23:13 UTCEG score recompute
- 2026-10-11 13:44 UTCEPSS rescoreEPSS 5.8% · 92nd percentile
- 2026-10-10 19:56 UTCEPSS rescoreEPSS 5.8% · 92nd percentile
- 2026-10-09 20:04 UTCEPSS rescoreEPSS 5.8% · 92nd percentile
- 2026-10-08 16:40 UTCEPSS rescoreEPSS 5.8% · 92nd percentile
- 2026-10-07 23:45 UTCEPSS rescoreEPSS 5.8% · 92nd percentile
- 2026-10-06 15:14 UTCEPSS rescoreEPSS 5.8% · 92nd percentile
- 2026-10-05 17:40 UTCEPSS rescoreEPSS 5.8% · 92nd percentile
- 2026-10-04 23:19 UTCEPSS rescoreEPSS 5.8% · 92nd percentile
- 2026-10-03 14:23 UTCEPSS rescoreEPSS 5.8% · 92nd percentile
- 2026-10-02 16:23 UTCEPSS rescoreEPSS 5.8% · 92nd percentile
- 2026-10-01 19:47 UTCEPSS rescoreEPSS 5.8% · 92nd percentile
- 2026-09-30 16:01 UTCEG score recompute
- 2026-09-30 15:00 UTCEPSS rescoreEPSS 5.8% · 92nd percentile
- 2026-09-29 15:16 UTCEPSS rescoreEPSS 5.8% · 92nd percentile
- 2026-09-27 13:42 UTCEPSS rescoreEPSS 5.8% · 92nd percentile
- 2026-09-26 00:22 UTCEPSS rescoreEPSS 5.7% · 92nd percentile
- 2026-09-24 14:00 UTCEPSS rescoreEPSS 5.7% · 92nd percentile
- 2026-09-24 07:19 UTCOSV refresh
- 2026-09-22 14:45 UTCEPSS rescoreEPSS 5.7% · 92nd percentile
- 2026-09-20 20:13 UTCEPSS rescoreEPSS 5.7% · 92nd percentile
- 2026-09-19 15:38 UTCEPSS rescoreEPSS 5.7% · 92nd percentile
- 2026-09-17 19:24 UTCEPSS rescoreEPSS 5.7% · 92nd percentile
- 2026-09-16 14:05 UTCEPSS rescoreEPSS 5.7% · 92nd percentile
- 2026-09-15 03:07 UTCEPSS rescoreEPSS 5.7% · 92nd percentile
- 2026-09-12 14:57 UTCEPSS rescoreEPSS 5.7% · 92nd percentile
- 2026-09-11 14:50 UTCEPSS rescoreEPSS 5.7% · 92nd percentile
- 2026-09-11 09:33 UTCEPSS rescoreEPSS 5.7% · 92nd percentile
- 2026-09-08 21:57 UTCEPSS rescoreEPSS 5.7% · 92nd percentile
- 2026-09-07 15:58 UTCEPSS rescoreEPSS 5.7% · 92nd percentile
- 2026-09-06 13:45 UTCEPSS rescoreEPSS 5.7% · 92nd percentile
- 2026-09-05 15:25 UTCEPSS rescoreEPSS 5.7% · 92nd percentile
- 2026-09-05 00:59 UTCOSV refresh
- 2026-09-04 13:57 UTCEPSS rescoreEPSS 5.7% · 92nd percentile
- 2026-09-04 05:04 UTCEPSS rescoreEPSS 5.7% · 92nd percentile
- 2026-09-02 14:09 UTCEPSS rescoreEPSS 5.7% · 92nd percentile
- 2026-09-01 13:51 UTCEPSS rescoreEPSS 5.7% · 92nd percentile
- 2026-08-30 19:14 UTCEPSS rescoreEPSS 5.7% · 92nd percentile
- 2026-08-30 01:19 UTCEPSS rescoreEPSS 5.7% · 92nd percentile
- 2026-08-28 21:38 UTCEPSS rescoreEPSS 5.7% · 92nd percentile
- 2026-08-27 14:22 UTCEPSS rescoreEPSS 5.7% · 92nd percentile
- 2026-08-26 14:43 UTCEPSS rescoreEPSS 5.7% · 92nd percentile
- 2026-08-25 13:46 UTCEPSS rescoreEPSS 5.7% · 92nd percentile
- 2026-08-24 14:13 UTCEPSS rescoreEPSS 5.7% · 92nd percentile
- 2026-08-23 00:17 UTCEPSS rescoreEPSS 5.7% · 92nd percentile
- 2026-08-21 23:46 UTCEPSS rescoreEPSS 5.7% · 92nd percentile
- 2026-08-20 22:52 UTCEPSS rescoreEPSS 5.5% · 92nd percentile
- 2026-08-19 17:01 UTCEPSS rescoreEPSS 5.4% · 92nd percentile
- 2026-08-18 13:45 UTCEPSS rescoreEPSS 5.4% · 92nd percentile
- 2026-08-18 12:02 UTCOSV refresh
- 2026-08-17 13:44 UTCEPSS rescoreEPSS 5.4% · 92nd percentile
- 2026-08-16 14:53 UTCEPSS rescoreEPSS 5.4% · 92nd percentile
- 2026-08-16 02:11 UTCEPSS rescoreEPSS 5.4% · 92nd percentile
- 2026-08-15 01:27 UTCEPSS rescoreEPSS 5.4% · 91st percentile
- 2026-08-13 21:58 UTCEPSS rescoreEPSS 5.4% · 91st percentile
- 2026-08-12 13:48 UTCEPSS rescoreEPSS 5.4% · 91st percentile
- 2026-08-11 13:39 UTCEPSS rescoreEPSS 5.4% · 91st percentile
- 2026-08-10 14:08 UTCEPSS rescoreEPSS 5.4% · 91st percentile
- 2026-08-09 13:44 UTCEPSS rescoreEPSS 5.4% · 91st percentile
- 2026-08-08 16:34 UTCEPSS rescoreEPSS 5.4% · 91st percentile
- 2026-08-07 16:24 UTCEPSS rescoreEPSS 5.4% · 91st percentile
- 2026-08-06 13:44 UTCEPSS rescoreEPSS 5.4% · 91st percentile
- 2026-08-05 19:15 UTCEPSS rescoreEPSS 5.4% · 91st percentile
- 2026-08-04 15:07 UTCEPSS rescoreEPSS 5.4% · 91st percentile
- 2026-08-04 10:35 UTCEPSS rescoreEPSS 5.4% · 91st percentile
- 2026-08-03 07:27 UTCOSV refresh
Related CVEs(same product + same vendor + same CWE)
Same product
10 shownDebian:10:python3.7 · Alpine:v3.16:python3
Same vendor
10 shownredhat:RHSA-2023:0848 · ubuntu:USN-5767-1 · ubuntu:USN-5888-1
- CVE-2022-31629NVD 6.5EG 7.4EPSS p99HIGH
- CVE-2022-31630NVD 6.5EG 7.1HIGH
- CVE-2022-31628NVD 2.3EG 5.5MEDIUM
- CVE-2022-31631EG 9.1CRITICAL
- CVE-2022-45061EG 7.5HIGH
- CVE-2015-20107NVD 7.6EG 9.8CRITICAL
- CVE-2017-8923EG 9.8EPSS p94CRITICAL
- CVE-2022-42919EG 7.8HIGH
- CVE-2023-24329EG 7.5EPSS p97HIGH
- CVE-2021-28861EG 7.4HIGH
Frequently asked(5)
What is CVE-2022-37454?
When was the CVE record for CVE-2022-37454 published?
Is CVE-2022-37454 actively exploited?
What is the CVSS score of CVE-2022-37454?
How do I remediate CVE-2022-37454?
Dependency Blast Radius
See which npm, PyPI, Go, and Maven packages are affected by CVE-2022-37454
Is Your Infrastructure Affected by CVE-2022-37454?
EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.